3Com 5500G, 4210 manual VLAN-VPN Tunneling, Network diagram for VLAN-VPN tunneling configuration

80CHAPTER 14: MSTP CONFIGURATION GUIDE

instance 4 vlan 40

active region-configuration

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■Configuration on Switch C

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stp instance 4 root primary stp region-configuration region-name example instance 1 vlan 10 instance 3 vlan 30 instance 4 vlan 40

active region-configuration

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■Configuration on Switch D

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stp region-configuration instance 1 vlan 10 instance 3 vlan 30 instance 4 vlan 40

active region-configuration

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Configuring	VLAN-VPN tunneling enables BPDUs to be transparently transmitted between
VLAN-VPN Tunneling	geographically dispersed customer networks through a specific VLAN VPN over
	the service provider network. This allows the customer networks to share a
	spanning tree independent of that of the service provider network.
Network Diagram	Figure 23 Network diagram for VLAN-VPN tunneling configuration

Switch C		Switch D
	Eth 1/0/2	Eth 1/0/1
			Eth 1/0/2
Eth 1/0/1

Eth 1/0/1	Eth 1/0/1
Switch A	Switch B

Networking and

Configuration

Requirements

■Use the Switch 5500 (Switch C and Switch D in the network diagram) as access devices of the service provider network.

■Use the Switch 4210 (Switch A and Switch B in the network diagram) as access devices of the customer networks.

■Connect Switch C and Switch D through trunk ports. Enable VLAN-VPN tunneling in system view to achieve transparent transmission between the customer networks over the service provider network.